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Mariana invented an exciting new device to help visually impaired people read. The cost of bringing this device to the marketplace was $200,000 in land (natural resources), $400,000 in capital (money, buildings, equipment), and $200,000 in labor (employees). In the company's first year, Mariana sold
$2 million worth of the devices.
How much profit did Mariana earn from her new business?
a. $800,000
b. $1,200,000
c. $2,000,000
d. $2,800,000


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